The importance of vacuum pumps in various industries cannot be overstated. While it may seem that these pumps are only used for removing debris and dirt, they have a wider range of uses. They can also be utilized to pick up, place, or hold small parts in specific locations during assembly processes. Industries such as petrochemical, packaging, plastics, and furniture manufacturing rely heavily on these pumps. Read on to learn more.
Types of vacuum pumps
Various kinds of vacuum pumps exist in different industries. It’s essential to understand the types of pumps and the industries that use them.
Reciprocating vacuum pumps
These pumps operate by inflating and contracting in a sealed chamber where two one-way valves manage the fluid flow. You will find three categories under this pump type – piston, plunger, and diaphragm vacuum pumps.
These pumps are used in the petrochemical, pharmaceutical, cosmetics, and chemical industries. They are particularly useful for high-pressure and low-flow operations and are employed in water jet cutting.
Rotary vane vacuum pumps
These pumps generate low-pressure zones by rotating the moving components against the pump housing. They are designed to be radially implanted into a circular-shaped rotor placed relative to the stator housing.
These pumps are mostly used in the automotive and aerospace industries.
Dry claw vacuum pumps
These pumps are popular for their noise-free operation and high-performance level. Instead of wet lubricants, they use dry or solid lubricants like graphite, molybdenum sulfide, etc. They have twin rotors that rotate in opposite circles without coming into contact with each other.
The industries where these pumps are used the most are packing, printing, wood processing, and wastewater management.
Liquid ring vacuum pumps
The vanes of this pump are fixed to the rotor. As the rotor rotates due to the motor’s eccentricity, the cavities expand and draw the liquid into the chamber.
The use of these pumps is varied – from paper production to soil remediation. These pumps are also efficient in pulling incondensable gas from the steam-turbine generators.
Things to consider when choosing a vacuum pump
Here are a few tips to consider to acquire an efficient pump:
Usage
To properly select a vacuum pump for your business, it’s important to understand why you need one. By evaluating its role in your operations, you can make an informed decision about which pump is the right fit.
The flow rate of the pump
The flow rate of a machine refers to how quickly it can drain, which is an important factor in determining the capacity of the vacuum pumps. A higher flow rate means a shorter draining time.
Chemical compatibility
Considering the chemical components (gas/liquid) and comparing them with the pumps being used is important. Doing so will provide insight into any potential problems that may be encountered.
Lubrication
Lubrication ensures the efficiency and resistance of the pumps. While some pumps require wet lubrication, others need dry or solid lubrication. You must ascertain which pump you require, given the situation.
Cost
The price of the vacuum pumps differs as per their type. The oil-based vacuum pumps are always cheaper than the dry pumps. You must consider your budget and the above criteria for the best pump.
